That seems rather specific to be a frequently asked question. But yes, Jennifer Lawrence supports ranked ballot voting.
When the Maine legislature nullified a statewide referendum approving ranked choice voting, Jennifer Lawrence got involved during the second referendum. Maine's second referendum on ranked choice voting was held at the same time voters were using ranked ballot voting to vote in the primaries. After having a chance to use ranked ballots and see how they work, Maine again voted in favour of using ranked ballots, this time with a larger margin than the first time.